The airstream dryer is a hot air stream flowing at high speed to allow the wet starch to be suspended and dried during air flow. With high heat transfer coefficient, large heat transfer area, drying time is short and so on.

    Airflow drying, also known as "instantaneous drying", is the application of dilute phase transport in drying in solid fluidization. The method is to make the heating medium and the solid particles to be dried in direct contact, and to dry the solid particles to be suspended in the fluid, so the two-phase contact area, and strengthen the heat and mass transfer process, widely used for bulk material drying unit operation.